b14f1da23c
Current LLDB (that is without DWZ support) crashes accessing Fedora debug info:
READ of size 8 at 0x60200000ffc8 thread T0
#0 in DWARFDebugInfoEntry::BuildAddressRangeTable(SymbolFileDWARF*, DWARFCompileUnit const*, DWARFDebugAranges*) const tools/lldb/source/Plugins/SymbolFile/DWARF/DWARFDebugInfoEntry.cpp:1336
Greg Clayton: We will need a warning to be emitted in
SymbolFileDWARF::CalculateAbilities() stating we won't parse the DWARF due to
"unsupported DW_FORM value of 0x1f20".
Patch has been mostly written by Greg Clayton.
Differential revision: https://reviews.llvm.org/D35622
llvm-svn: 309581
77 lines
2.6 KiB
C++
77 lines
2.6 KiB
C++
//===-- DWARFDebugAbbrev.h --------------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef SymbolFileDWARF_DWARFDebugAbbrev_h_
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#define SymbolFileDWARF_DWARFDebugAbbrev_h_
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#include <list>
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#include <map>
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#include "lldb/lldb-private.h"
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#include "DWARFAbbreviationDeclaration.h"
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#include "DWARFDefines.h"
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typedef std::vector<DWARFAbbreviationDeclaration>
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DWARFAbbreviationDeclarationColl;
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typedef DWARFAbbreviationDeclarationColl::iterator
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DWARFAbbreviationDeclarationCollIter;
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typedef DWARFAbbreviationDeclarationColl::const_iterator
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DWARFAbbreviationDeclarationCollConstIter;
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class DWARFAbbreviationDeclarationSet {
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public:
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DWARFAbbreviationDeclarationSet()
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: m_offset(DW_INVALID_OFFSET), m_idx_offset(0), m_decls() {}
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DWARFAbbreviationDeclarationSet(dw_offset_t offset, uint32_t idx_offset)
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: m_offset(offset), m_idx_offset(idx_offset), m_decls() {}
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void Clear();
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dw_offset_t GetOffset() const { return m_offset; }
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void Dump(lldb_private::Stream *s) const;
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bool Extract(const lldb_private::DWARFDataExtractor &data,
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lldb::offset_t *offset_ptr);
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// void Encode(BinaryStreamBuf& debug_abbrev_buf) const;
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dw_uleb128_t
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AppendAbbrevDeclSequential(const DWARFAbbreviationDeclaration &abbrevDecl);
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void GetUnsupportedForms(std::set<dw_form_t> &invalid_forms) const;
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const DWARFAbbreviationDeclaration *
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GetAbbreviationDeclaration(dw_uleb128_t abbrCode) const;
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private:
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dw_offset_t m_offset;
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uint32_t m_idx_offset;
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std::vector<DWARFAbbreviationDeclaration> m_decls;
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};
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typedef std::map<dw_offset_t, DWARFAbbreviationDeclarationSet>
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DWARFAbbreviationDeclarationCollMap;
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typedef DWARFAbbreviationDeclarationCollMap::iterator
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DWARFAbbreviationDeclarationCollMapIter;
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typedef DWARFAbbreviationDeclarationCollMap::const_iterator
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DWARFAbbreviationDeclarationCollMapConstIter;
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class DWARFDebugAbbrev {
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public:
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DWARFDebugAbbrev();
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const DWARFAbbreviationDeclarationSet *
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GetAbbreviationDeclarationSet(dw_offset_t cu_abbr_offset) const;
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void Dump(lldb_private::Stream *s) const;
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void Parse(const lldb_private::DWARFDataExtractor &data);
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void GetUnsupportedForms(std::set<dw_form_t> &invalid_forms) const;
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protected:
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DWARFAbbreviationDeclarationCollMap m_abbrevCollMap;
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mutable DWARFAbbreviationDeclarationCollMapConstIter m_prev_abbr_offset_pos;
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};
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#endif // SymbolFileDWARF_DWARFDebugAbbrev_h_
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